应优先选择（）物质开展物质人为流动分析 When carrying out a material anthropogenic flow analy
已帮助 人
应优先选择（）物质开展物质人为流动分析 When carrying out a material anthropogenic flow analysis, priority should be given to （）
A．人类用量保持不变的物质 The material whose uses by human beings remains constant
B．人类用量增长较慢的物质 The material that has a slower increase in human consumption
C．人类用量增长较快的物质 The material that had a rapid increase in human consumption
D．以上都不对 None of the above
回答
共1条回复-
物质在人类社会经济系统中的流动